Ultra Pure High-Potency 5.0% Niacinamide Serum, 1 oz.
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Web ID: 15795951568 reviews
Amazing serum
I’ve been using this for a few weeks, and here’s my honest review ✅ Reduces excess oil & shine ✅ Calms redness + post-acne flare-ups ✅ Layers beautifully – no pilling or sticky residue ✅ Lightweight, fast-absorbing, and fragrance-free Would I recommend it? YES — especially for oily, sensitive, or acne-prone skin. If you’re looking for a gentle niacinamide serum that keeps your skin clear and balanced without irritation, this is a solid pick.

Customer review from influenster.com
Work well
Worth it
Best serum for oily skin!
I love this serum! It feels great on the skin and has really helped with my skins oiliness!
Recommends this product
Customer review from kiehls.com
Not for me
I wanted to love this but every time I try it my whole face would break out :( had to stop using it
Customer review from kiehls.com.au
Nice product
All this product have helped me to improve my face condition which was dry and not smooth
Recommends this product
Customer review from kiehls.com
Nice to mix with the Hyaluronic Acid serum
I've been mixing this with Hyaluronic Acid serum and I'm loving the combination and results. I feel tighter, more hydrated a little less red.
Recommends this product
Customer review from kiehls.com
Trusted because it works.
I trust this brand for its true nature and effective products.
Recommends this product
Byebye blemishes
I LOVE this product. I have super sensitive acne prone combination skin and shockingly this product clears my pimples within a few days without drying or causing eczema patches. It's pricey but it works.
Recommends this product
Customer review from kiehls.com